Is the Gocio Mini15 good for a bright living room?

No. Mini projectors at this size put out limited brightness, so the image looks washed out with daylight or strong lamps. It performs best in a dark or dim room.

What can I connect to it?

It takes HDMI sources such as a laptop, console or streaming stick, and many mini projectors also accept USB and screen mirroring from a phone. Check the port list before buying if you need a specific input.

How large an image can it throw?

It can project a screen far larger than its body suggests, but the picture dims as the image grows. A moderate screen size in a dark room gives the sharpest, brightest result.

Do I need external speakers?

The built-in speaker is fine for casual watching, but it is small and thin. A Bluetooth or wired speaker improves dialogue and music noticeably.

Is it good for gaming?

For casual and party games it is fine. Fast competitive games can feel laggy because mini projectors often have higher input delay than a TV or monitor.